25results about How to "Improve installation positioning accuracy" patented technology

The invention discloses an electric three-way valve which comprises a driving device and a valve body, the driving device comprises a stepping motor and a reduction gearbox, the reduction gearbox is provided with an output planet carrier, a ball core is arranged in the valve body, an output shaft of the output planet carrier is connected with the ball core, the valve body is provided with three connectors, the three connectors are a port B, a port C and a port A respectively, the port A is an inlet, and the port B is an outlet. A channel a, a channel b and a channel c are arranged in the ball core, the stepping motor controls the ball core to be in a boundary state when the ball core rotates by 90 degrees through the reduction gearbox so that the ball core can be in the four boundary states of 0 degree, 90 degrees, 180 degrees and 270 degrees, the angle between the two boundary states of the ball core is in a transition state, and the ball core is used for adjusting fluid flow when in the transition state. Continuous flow adjustment can be achieved, the phenomenon of shock cooling and shock heating is avoided, opening and closing of the port B and the port C can be independently controlled, and optimal control over the system is achieved.

The present invention discloses a positioning structure, including: a grinding wheel grinding positioning unit, when the grinding wheel is used to grind the shredder, the grinding wheel grinding positioning unit is used to monitor whether the grinding wheel reaches the grinding position, and when the grinding wheel does not reach the grinding position, the grinding wheel grinding positioning unit sends out an alarm; a tool positioning unit, including a lower knife door strip, a shredder positioning part, an adjustment part and a locking part, the lower knife door strip can be movably connected to the shredder positioning part, the lower knife door strip is provided with a positioning groove, the adjustment part adjusts the lower knife door strip to a preset position, so that the positioning groove can position and calibrate the shredder after grinding, and when the lower knife door strip is adjusted on the shredder positioning part, the lower knife door strip is locked and fixed by the locking part. The positioning structure provided by the present invention improves the installation positioning accuracy and grinding positioning accuracy of the shredder through the tool positioning unit and the grinding wheel grinding positioning unit, thereby ensuring the stability of fixed-length shredding and shredding width. The present invention also discloses a tobacco shredding system.

The fine adjustment type support equipment comprises a top installation plate, a guide connection device is installed at the upper end of the top installation plate, bearing plates are symmetrically installed below the top installation plate, and a left guide block and a right guide block are installed on the outer sides of the bearing plates through guide devices respectively. A left-right fine adjustment device is mounted on the left guide block, and an up-down fine adjustment device is mounted on the right guide block; and the front sides of the left-right fine adjustment device and the up-down fine adjustment device are connected with a mounting base. Therefore, through mutual cooperation of the left-right fine adjustment device and the up-down fine adjustment device, a two-dimensional fine adjustment scheme can be formed, and the mounting and positioning precision of the clamping jaw device is remarkably improved. The sliding rail and the sliding block have a good self-lubricating effect on the premise that the stable combination degree is met. The stop raised head is matched with the elastic buffer rod, redundant impact kinetic energy can be absorbed at the limiting position, impact resonance is avoided, and use noise is reduced.

The invention relates to the technical field of road construction, and discloses a sliding anchoring construction method for an inclined prestressed cement concrete pavement, which is characterized by comprising the following technological processes: preparing for construction; a sliding construction platform is erected; a pavement side mold is erected; laying a sliding layer; prestressing tendons and common reinforcing steel bars are blanked; installing reinforcing steel bars; mounting a corrugated pipe; concrete construction; pre-stressed tendons are arranged in a pipe penetrating mode; tensioning the prestressed tie bars; pipeline grouting; constructing an anchoring groove closed body; road surface grooving; the micro-expansion concrete is poured into the cavity defined by the anchoring groove plate and the wall-attached steel die, an anchoring groove closed body is formed, the difficulty of prestressed tie bar closed construction is reduced, and the durability of prestressed tie bars is improved.

The invention relates to a construction method of a reinforcing and upgrading structure of a rainwater falling pipeline undisturbed utilization carriageway inspection well, a rubber pad and a reinforced compaction well lid are adopted to cover the inspection well, and the compaction strength of roadbed soil around the inspection well is improved; heightened cement soil is adopted to reinforce a roadbed and raise a steel fiber concrete shaft structure, the overall strength of the inspection well and surrounding soil is improved, and sedimentation of the inspection well and the surrounding soil is reduced; the upper portion of the inspection well is subjected to backfilling treatment in the roadbed compaction process by adopting an easily-excavated discrete material, and the secondary excavation construction difficulty of the inspection well is improved; the upper part of the inspection well is treated by adopting a prefabricated well seat and a well periphery butt strap structure, so that the influence of roadbed settlement on the inspection well is reduced; the prefabricated well seat mounting bracket is used for mounting the prefabricated well seat, so that the mounting and positioning precision and the construction efficiency of the prefabricated well seat are improved.

The utility model discloses an integrated engine accessory support assembly and an engine. The integrated engine accessory support assembly comprises a mounting plate, a top frame, a side convex mounting block and an arc-shaped positioning plate, a top frame is arranged on the top surface of the mounting plate; arc-shaped positioning plates are arranged on opposite side walls of the mounting plate; a side convex mounting block is arranged outside the arc-shaped positioning plate on one side; an air conditioner, a belt idle pulley and a generator; the air conditioner is mounted on the top frame; the belt idle pulley is mounted on the side convex mounting block; and the generator is accommodated below the top frame and is connected with the arc-shaped positioning plate. By the adoption of the assembly, the overall width of the engine can be effectively reduced, the engine assembly can be suitable for vehicle models of narrower models, and the sales range of the engine provided with the assembly is widened. The utility model discloses an integrated engine accessory support assembly.

The utility model belongs to bridge floor construction technical field discloses a kind of support device suitable for steel concrete composite beam wing plate.The first support piece in support device is detachably arranged at the bottom of the second support piece, and the support assembly is low in dismounting difficulty and high in dismounting efficiency. The adjacent support assemblies in the same support structure are provided with elastic locks, and the first end of the elastic lock can abut against the inner wall surface of the first support piece when it is elastically deformed, and the second end can abut against the inner wall surface of the second support piece. A single elastic lock can lock the first support piece and the second support piece of the same support assembly, improving the connection strength of the first support piece and the second support piece. The adjacent support assemblies in a single support structure can be locked by the locking mechanism, and the adjacent support structures are connected to each other, ensuring the structural self-stability of the support device and improving the overall support effect of the support platform on the steel concrete composite beam wing plate, thereby ensuring the construction and construction quality of the steel concrete composite beam.

The invention relates to a construction method of a prestressed prefabricated T-beam, which adopts a bottom pull rod and a top pull rod to fix and tie full-automatic movable hydraulic formworks on two sides, so that a steel formwork of the T-beam is fixed, and the concrete pouring quality and safety of the prefabricated T-beam are improved; the embedded steel plate gradient bidirectional adjusting device is adopted, the position and angle of the upper steel plate are adjusted through the adjusting screw rod, the installation position of the beam bottom steel plate is accurately adjusted, and the installation and positioning accuracy of the beam bottom steel plate is improved; the position of the tensioning jack is adjusted through the prestress tensioning support, the lifting support and the limiting wooden wedge are arranged in the middle of the prestress tensioning support to support the tensioning jack, the lifting cross beam is provided with the winch and the steel wire rope to adjust the position of the lifting support, and the T-beam prestress tensioning construction efficiency is improved.

The application discloses a kind of ship outfitting support positioning system and method, the system includes measured data acquisition device, computing device and adjustable positioning device, computing device is used to identify the first and second reference structure that is not parallel from three-dimensional data, to establish local coordinate system with intersection point as reference, and generate the first distance, second distance and azimuth angle parameter of design installation point, respectively indicating the distance along two reference directions and the angle with the first reference.The reference joint of adjustable positioning device is adjusted to the corresponding distance parameter position when using, the angle is adjusted to azimuth angle parameter, then the joint is attached to the corresponding reference structure, at this time, the rotation center is defined installation point.The application uses ship actual point cloud data, with two non-parallel structures as reference, realizes the effective conversion of point cloud data to installation parameter, improves support installation precision and construction efficiency.

The invention belongs to the technical field of ship construction, and discloses a bow mounting method, a bow and a floating platform. The bow mounting method comprises the following steps: positioning an upper bow section, and mounting an upper casting on the upper bow section by taking the upper bow section as a reference; setting a first butt joint reference on the interface cross section of the upper casting; the lower bow section is positioned, and the lower casting is installed on the lower bow section with the lower bow section as the reference; a second butt joint datum is arranged on the interface cross section of the lower casting; the bow upper section provided with the upper casting is hoisted to the bow lower section provided with the lower casting, the connector cross section of the upper casting and the connector cross section of the lower casting are in butt joint and folded, and the first butt joint datum corresponds to the second butt joint datum; and the bow upper section and the bow lower section are welded, and the upper casting and the lower casting are welded. According to the bow mounting method, the mounting and positioning accuracy of all parts of the bow can be improved, and the manufacturing quality of the bow can be improved.

The utility model provides a laser device and laser processing equipment, and relates to the field of laser processing equipment, the laser processing equipment comprises a mounting bracket and a laser device mounted on the mounting bracket, the top of the mounting bracket is provided with a second connecting part; the laser comprises a body and a top cover, the body comprises a shell and a laser light source arranged in the shell, and at least one side face of the shell is used for abutting against at least one side face of the installation support. The top cover covers the top of the shell, the top cover is provided with a first connecting part, and the laser and the mounting bracket are fixedly connected through the first connecting part and the second connecting part. According to the technical scheme, the laser is convenient to disassemble and assemble.

The utility model relates to a concrete wall steel bar positioning device which comprises a wall column positioning device which comprises a first supporting rod and angle irons connected to the two ends of the first supporting rod. The abutted seam limiting device comprises a second supporting rod and hard plastic plates connected to the two ends of the second supporting rod; the connecting piece is used for connecting the first supporting rod and the second supporting rod, and the first supporting rod and the second supporting rod are arranged in parallel. When the device is used, the effects of preventing mortar leakage at the splicing seam of the formwork, beautifying the concrete forming effect at the splicing seam of the formwork and improving the mounting and positioning accuracy of wall column steel bars are achieved.

The present invention discloses a high-intensity focused ultrasonic transducer, including a transducer bracket and a focusing piezoelectric sheet, wherein the transducer bracket is an integrally formed structure, wherein the focusing piezoelectric sheet is installed in the transducer bracket by gluing, and a positioning column is provided inside the transducer bracket, wherein the positioning column includes an outer positioning protrusion and an inner positioning protrusion, wherein an inner ring glue groove is formed between the outer positioning protrusion and the inner positioning protrusion, wherein the top of the outer positioning protrusion forms a positioning surface, and a gap is left between the outer surface of the inner positioning protrusion and the inner side surface of the inner ring of the focusing piezoelectric sheet to form an inner ring glue injection port. The present invention only requires a bracket to complete the positioning and support of the piezoelectric sheet, and the operation is simple and easy to ensure accuracy; the negative electrode lead is then led out from the front through the wiring groove to improve the reliability of the lead; the sealing is performed by glue sealing, and the soft elasticity of the glue is utilized to ensure the stability of the sound output, and the internal stress of the piezoelectric ceramic is reduced to prevent the piezoelectric ceramic from being brittlely fractured.

The utility model discloses a stadium perforated aluminum plate installation device which comprises a steel structure installation frame, an aluminum alloy load-bearing cross beam, a perforated aluminum plate body and second installation fastening holes, and the aluminum alloy load-bearing cross beam is fixed to the bottom of the front surface of the steel structure installation frame through cooperation of the second installation fastening holes and fastening bolts. A main installation end piece and an auxiliary installation end piece are symmetrically fixed to the bottoms of the two ends of the aluminum alloy bearing cross beam. The bottom of the perforated aluminum plate body can be pre-supported through the supporting grooves formed in the aluminum alloy load-bearing cross beam; second mounting fastening holes are matched with fastening bolts, so that the whole structure of the aluminum alloy bearing cross beam, the main mounting end pieces and the auxiliary mounting end pieces is fixedly connected with the bottom of the front surface of the steel structure mounting frame, and the range of the connecting structure with the steel structure mounting frame can be widened through the arrangement of the auxiliary mounting end pieces; the supporting stability between the structures is improved, and meanwhile the construction efficiency and the installation convenience can be effectively improved.

A reinforcing plate for automotive doors, relating to the field of automotive parts technology, includes a reinforcing plate body and a door. The reinforcing plate body is disposed between the inner and outer panels of the door and has an elongated strip structure. Positioning holes are evenly distributed on the flanged portion of the reinforcing plate body. Positioning rods are provided on the door corresponding to the positions of the positioning holes. The positioning rods are inserted into the positioning holes and have a threaded end, which is fixed to the reinforcing plate body by a nut. The reinforcing plate body has several weight-reducing holes. This automotive door reinforcing plate replaces traditional welding, improves installation and positioning accuracy, facilitates disassembly and maintenance, and reduces maintenance costs. Through the combination of sound-absorbing cotton and the double fixing of grooves and protrusions, it ensures stable and long-lasting noise reduction, improving the vehicle's NVH performance.

This invention discloses a rapid hoisting and positioning system for cleanroom panel construction, comprising: a cleanroom panel, an installation component, and a keel; connecting pieces are fixedly installed at the four corners of the cleanroom panel; the installation component is fixedly connected to the connecting pieces; the installation component includes an installation piece; a trigger block is slidably connected inside the installation piece, and an inclined groove is provided on the upper part of the trigger block, with a limit block slidably connected within the inclined groove; a connector, a guide seat, and a push piece are installed inside the installation component, and two triangular locking blocks are slidably connected inside the guide seat; the side wall of the keel is provided with slots corresponding to the triangular locking blocks, and the cleanroom panel is fixed by inserting the triangular locking blocks into the slots. The above positioning system can automatically complete alignment, installation, and locking, reducing manual operation steps at heights, improving construction efficiency compared to traditional processes. Simultaneously, it adopts a dual fixing mode of initial snap-fit ​​and mechanical locking, effectively preventing the cleanroom panel from falling off, and exhibiting excellent structural stability.

The invention discloses a precision part mounting assembly, which relates to the technical field of precision part processing, and comprises a machine tool worktable and a mounting table arranged on the machine tool worktable through a plurality of support rods, the mounting assembly is arranged on the mounting table and used for mounting the sheet type circular precision part, the control assembly is used for detecting and controlling the mounting force of the sheet type circular precision part according to the warping shape of the sheet type circular precision part, and the mounting assembly comprises a first suction pipe and a plurality of second suction pipes which are arranged on the mounting table; the first suction pipe is located in the center of the mounting table, and all the second suction pipes are arranged on the peripheral side of the first suction pipe in an annular array mode. According to the precision part mounting assembly, through the arrangement of the mounting assembly, under the detection control action of the control assembly, the suction force on the central part and the peripheral part of the sheet type circular precision part can be conveniently and adaptively changed according to the warping shape of the sheet type circular precision part.

The utility model discloses a position-adjustable aircraft fixture positioner assembly which comprises a frame, a base and a positioner, the base is placed above the frame, a plurality of through holes are formed in the frame, a plurality of first adjusting holes are formed in the base, and the positions of the first adjusting holes are opposite to the positions of the through holes in the frame; the first adjusting bolt penetrates through the first adjusting hole and the through hole and is in threaded fit with the first adjusting hole; the positioner is placed above the base, a first adjusting seat and a second adjusting seat are arranged on the base, a second adjusting hole is formed in the first adjusting seat, a second adjusting bolt penetrates through the second adjusting hole, and the end of the second adjusting bolt abuts against the positioner; a third adjusting hole is formed in the second adjusting seat, a third adjusting bolt penetrates through the third adjusting hole, and the end of the third adjusting bolt abuts against the positioner. Fine fine adjustment is achieved by adjusting the thread pitch on the bolt, the positions of the positioner in the X direction, the Y direction and the Z direction are conveniently and rapidly adjusted, the installation position precision of the positioner is improved, and precise positioning of follow-up aircraft assembly is guaranteed.

This utility model provides a structure for quick disassembly of a power battery, relating to new energy vehicles. It includes: two connecting parts; support beams on opposite sides of the power battery pack; multiple center positioning holes on the support beams; each connecting part including a connecting bracket, a support bracket, and multiple positioning pins; the connecting bracket having multiple suspension brackets; multiple upper positioning holes on the connecting bracket; and multiple lower positioning holes on the support bracket. The upper parts of the two support beams contact the bottoms of the two connecting brackets, and the lower parts of the two support beams contact the tops of the two support brackets, aligning the upper, center, and lower positioning holes. Each positioning pin is sequentially inserted into the upper, center, and lower positioning holes. The support bracket moves along the length of the power battery pack, locking or releasing the positioning pin via the lower positioning hole. The advantages of this utility model are: it enables quick disassembly and installation of the power battery pack; the installation and positioning process is simple; it saves assembly time and improves assembly efficiency.

The application discloses a bearing for a vertical shaft, comprising an outer ring and an inner ring, two rows of retainers are arranged between the outer ring and the inner ring, rolling bodies are assembled in the retainers, the retainers comprise an upper edge part, a pocket part and a lower edge part, the upper edge part is arranged along the axial direction of the outer ring, the lower edge part is arranged along the radial direction of the outer ring, the pocket part is arranged obliquely, a plurality of pockets are arranged on the pocket part, pocket beams are formed between adjacent pockets on the pocket part, a plurality of outer convex ribs are arranged obliquely on the outer circumferential wall of the retainer, a plurality of inner convex ribs are arranged obliquely on the inner circumferential wall of the retainer, and the inner convex ribs and the outer convex ribs are arranged at positions corresponding to the pocket beams. The bearing has the advantages of simple structure, effective solution to the problems of uneven distribution of lubricating grease, double-row bearing lubricating grease flow and poor sealing reliability in the prior art, and effective improvement of the operation stability and service life of the bearing.

The utility model discloses a battery energy storage system, including support frame and interval setting on the support frame a plurality of battery package, and battery package includes liquid cooling board and battery module, and battery module sets up on liquid cooling board, is provided with first positioning portion on liquid cooling board, is provided with second positioning portion on support frame, and first positioning portion and second positioning portion can detachable connection. The utility model discloses a battery energy storage system through the detachable connection of first positioning portion and second positioning portion, makes liquid cooling board and support frame can realize the positioning cooperation, promotes the installation positioning precision of battery package, effectively enhances the installation stability and reliability of battery package and battery frame, reduces the situation of displacement after battery package installation.

The invention discloses a modular arrangement structure for equipment between ship oil separators, and relates to the technical field of ship construction, the modular arrangement structure comprises an oil residue cabin, an L-shaped equipment base is arranged right above the oil residue cabin, rubber cushion seats are distributed at the top end of the L-shaped equipment base in a rectangular manner, and the outer sides of the rubber cushion seats are connected with the bottom ends of centrifugal oil separators in an attached manner; one side of the centrifugal oil separator is connected with an oil outlet pipe with a valve, the oil inlet pipe is arranged at the input end of an oil separation heater, and a pressure instrument is arranged on one side of the oil separation heater. According to the device, full-modular integrated arrangement of equipment between oil separators is achieved, the ship building and operation and maintenance efficiency is greatly improved, integrated preassembly of core equipment such as the centrifugal oil separators, the oil separation heaters and the deslagging conveying mechanism is achieved through the L-shaped equipment base, and the mode that all the equipment is independently installed in a dispersed mode in the prior art is replaced; preassembling and debugging of equipment modules can be completed before ship final assembly, and the equipment installation period in the ship building stage is greatly shortened.

The utility model discloses a clamp tool for assembling a front cross beam and a longitudinal beam of a frame, and relates to the technical field of clamp tools. Comprising a base and clamping devices symmetrically arranged on the two sides of the extending direction of the base, and the clamping devices on the two sides are used for clamping longitudinal beams connected to the two sides of a head cross beam correspondingly. The clamping device comprises a positioning mechanism, a first clamping mechanism and a second clamping mechanism; the positioning mechanism is provided with a positioning piece capable of moving in the vertical direction and penetrating through the longitudinal beam and the head cross beam; the first clamping mechanism is provided with a first clamping mounting position for clamping the outer side wall of the longitudinal beam; the second clamping mechanism is provided with a second clamping mounting position for clamping the inner side wall of the longitudinal beam; a clamping channel for accommodating the longitudinal beam is formed between the first clamping mounting position and the second clamping mounting position; the head cross beam and the longitudinal beam are accurately positioned through the positioning mechanism, so that the mounting and positioning precision is improved; and the clamping channel can contain various types of longitudinal beams, so that the assembly between various types of frame longitudinal beams and the head cross beam is realized.

The application discloses a linear outer plate segmented assembling device and assembling method, and is clamped on a T row. By aligning the front end edge of the first limiting groove on the fixing part with the toe end position line of the knee plate, when the knee plate is inserted into the first limiting groove, the second limiting groove and the third limiting groove, the knee plate can be limited in the vertical state, so that the subsequent rib plate can be accurately positioned and installed, the knee plate can be positioned to the installation position at one time, the installation and positioning precision of the knee plate and the rib plate is improved, the installation and positioning efficiency of the knee plate and the rib plate is improved, the assembling time of the linear outer plate segmentation is greatly shortened, and the assembling precision of the linear outer plate segmentation is improved.